(CNBC) -- MillerCoors and Pabst Brewing are headed to court over a half-a-billion dollar lawsuit Pabst lodged against the Keystone beer maker.
The center of the dispute is a decades-old agreement under which MillerCoors brews all of Pabst's legacy beers, including Pabst Blue Ribbon. The agreement is set to expire in 2020, but it has two options to renew. MillerCoors, facing declining volume in the U.S., has said it may not have the capacity to continue that relationship.
The stakes for Pabst are high. Without that contract renewal, many of Pabst's beer brands will be orphaned. It is expensive to build a brewery and there are not many breweries across the U.S. built for the capacity a company as large as Pabst requires.
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